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What do we have for auction here? 20KW?

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Old 05-02-2011, 12:51:48 AM
bbuchorn bbuchorn is offline
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Default What do we have for auction here? 20KW?
Here is an auction for a nat gas? generator rated at 20KW But What kind is it. is it worth over the current 800 bid?
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Old 05-02-2011, 01:19:52 AM
Isaac-1 Isaac-1 is offline
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Default Re: What do we have for auction here? 20KW?

My guess is it is an Onan 20ES powered by a 4 cylinder inline Ford engine from the late 1980's maybe early 1990's (could be newer), with a detector controller. Obviously a 12 lead reconnectable generator end so can be connected for all common voltages, again guessing YD series generator end, being this late it could have and number of variations on electronic voltage regulators, may have either a VR-21 system or optionally upgraded VRAS-21. Value is relative, google revels another 20ES one sold on Gov Deals auction in similar as-is condition for about $2,800 last summer which seems a bit high to me. Overall should be a good generator if it runs if you need a 20KW generator.


ps correction on age guess, the Cummins C is visible on the data label, so that puts it early 90's or newer, no Cummins is seen on the side panel so my guess is this one is from around the time of the change over, so again early 90's (it may have been there but as a label over the painted Onan)

Last edited by Isaac-1; 05-02-2011 at 01:29:29 AM.
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Old 05-02-2011, 10:02:11 AM
Slick 50 Slick 50 is offline
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Default Re: What do we have for auction here? 20KW?

The bid price plus a 10% buyers fee.

20 KW would be pricey to operate for a typical residence. I take it the 20 KW rating is with natural gas. What do you think it would cost operate this generator for 24 hours?

I bet it would clean up and better than you can buy now.

Fun project.
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Old 05-02-2011, 10:20:23 AM
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Dave Edmonds Dave Edmonds is offline
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Smile Re: What do we have for auction here? 20KW?

Ad states that it's natural gas, but it has all the equipment for gasoline as well (fuel pump and filter, etc.). Picture of the side was shot a bit too low to see the natural gas mixer, regulator, etc. that should be there for natural gas or propane. Ratings indicate that it's extended stack (20KW in either single-phase or 3-phase connections). Appears virtually identical to the 20ES I have - mine is 1989 vintage. Engine is a Ford engine, identical to the one used in a Ford Pinto - if you need parts, go to the auto parts store and get the parts you need for a '79 Pinto - starter was $34.95, cap/rotor and plug wires fit perfectly, etc. Mine has a label that says the unit will derate about 20% for natural gas - don't know that for sure. Mine had overheat problems, due to an externally stopped-up radiator (couldn't see light through the fins) - easy fix (someone had taken the thermostat out to try and solve the overheat problems, to no avail). New enough to have good regulation; old enough to be easy to service. Paid $3500 for mine; still think I got a good deal (mine was close by - 105 miles away - easy pickup).
Dave Edmonds
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Old 05-02-2011, 07:06:24 PM
Douglas123 Douglas123 is offline
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Smile Re: What do we have for auction here? 20KW?

looks like a mid 80's 20 ES 4cyl ford set up on gasoline or natural gas. 1ph or 3ph full output. would make a good home standby or concession trailer set up. Can't read the top of the data plate in the photo.
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Old 05-02-2011, 07:29:35 PM
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Billy J Shafer Billy J Shafer is offline
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Default Re: What do we have for auction here? 20KW?

That is the 20 ES with the pinto engine. L423 if I remember correctly. Good little unit to have.
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